Here's a good article on SF Gate about how tough hockey players are. It was prompted by the last game between the Chicago Blackhawks and the San Jose Sharks on Sunday, in which Chicago defenseman Duncan Keith took a hard slap shot to the mouth.
Even though Keith was wearing a mouth guard, he lost SEVEN teeth in the incident. But almost unbelievably, he was out of the game for less than seven minutes!!!!! He went to the locker room, got sewn up and received some painkillers, and was back on the ice in almost no time at all.
There is a reason why most people don't play hockey. Those guys are tough.